<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	public $id;
	
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	public function authenticate()
	{
// 		$users=array(
// 			// username => password
// 			'demo'=>'demo',
// 			'admin'=>'admin',
// 		);
// 		if(!isset($users[$this->username]))
// 			$this->errorCode=self::ERROR_USERNAME_INVALID;
// 		else if($users[$this->username]!==$this->password)
// 			$this->errorCode=self::ERROR_PASSWORD_INVALID;
// 		else
// 			$this->errorCode=self::ERROR_NONE;
// 		return !$this->errorCode;
		$record=User::model()->findByAttributes(array('loginname'=>$this->username));
		if($record===null)
			$this->errorCode=self::ERROR_USERNAME_INVALID;
		else if($record->password!==md5($this->password))
			$this->errorCode=self::ERROR_PASSWORD_INVALID;
		else
		{
			$this->id=$record->id;
			//$this->setState('roles', $record->role);
			$this->setState('title', $record->titleid);
			$this->errorCode=self::ERROR_NONE;
		}
		return !$this->errorCode;
	}
	
	/**
	 * 得到用户ID
	 * @see CUserIdentity::getId()
	 */
	public function getId(){
		return $this->id;
	}
}